[1] Univ Washington, Seattle Canc Care Alliance, Seattle, WA 98195 USA
[2] Canc Rsrch & Biostats, Seattle, WA USA
[3] Tom Baker Canc Clin, Calgary, AB, Canada
[4] Southwest Oncol Grp Stat Ctr, Seattle, WA USA
[5] Univ Arizona, Arizona Canc Ctr, Tucson, AZ USA
[6] Univ Michigan, Ctr Comprehens Canc, Ann Arbor, MI 48109 USA
[7] Columbia Univ, Med Ctr, New York, NY USA
[8] Seattle Canc Care Alliance, Seattle, WA USA
[9] Ottawa Hosp Canc Ctr, Ottawa, ON, Canada
[10] Univ N Carolina, Chapel Hill, NC USA
[11] Mayo Clin, Rochester, MN USA
[12] Univ Alabama Birmingham, Birmingham, AL USA
[13] Univ Colorado, Ctr Canc, Aurora, CO USA
[14] Canc Care WNC PA, Asheville, NC USA
[15] Oakland Med Grp, West Bloomfield, MI USA
[16] Canc Ctr Kansas, Wichita, KS USA
[17] UC Davis Med Ctr, Sacramento, CA USA
[18] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA